Commercial cancer fighting dog food

Just curious to see what brands of commercial cancer fighting dogs foods might be out there. We have a PetSmart near our home.  One of the bloggers mentioned Nature’s Variety, but that is not locally available.  Lucy is a large breed dog and is somewhat of a picky eater.  We have been giving her chicken and beef but I would like to find a commercial product.  I have looked over the Dog Cancer diet download but did not see specific commercial brands listed.

thanks to all who have put their knowledge forth.